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High CVSS 7.7

CVE-2026-55729

Exposure of Sensitive Information (CWE-200) in LWEB802 browser `localStorage` in Loytec LWEB-802 before 5.0.8 on all platforms allows an unauthenticated remote attacker to leak stored management credentials via a crafted link.

What this means

Exposure
Exploitable remotely over the network and without authentication — but only if a user opens booby-trapped content. It also depends on circumstances the attacker does not control.
Impact
An attacker can read sensitive data, modify or destroy data and take the service offline.
Weakness
The application reveals information an unauthorised user should not see.
Likelihood
Its EPSS score stays low: nothing points to imminent exploitation, which is no reason to leave it unpatched.

What to doFold into the next patch cycle.

Read automatically from the CVSS vector, the weakness type (CWE) and the EPSS score. The technical description above remains the one published by NIST.

Published
24 July 2026
CVSS
7.7 (v4.0) CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS
0.32% probability of exploitation within 30 days · above 25% of all CVEs
Weakness
CWE-200
Sources
nvd
References

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